<template>
  <div id="app" class="vscroller">
  <div class="header">
    <h1 class="title">Refresh & Infinite</h1>
  </div>

  <scroller style="top: 44px"
        :on-refresh="refresh"
        :on-infinite="infinite"
        ref="my_scroller">
    <div v-for="(item, index) in items" class="row" :class="{'grey-bg': index % 2 == 0}">
    {{ item }}
    </div>
  </scroller>
  </div>
</template>
<style lang="less">
  .vscroller{
    .row {
    width: 100%;
    height: 50px;
    padding: 10px 0;
    font-size: 16px;
    line-height: 30px;
    text-align: center;
    color: #444;
    background-color: #fff;
    }
    .grey-bg {
    background-color: #eee;
    }
    .header {
    position: fixed;
    top: 0;
    left: 0;
    height: 44px;
    width: 100%;
    box-shadow: 0 2px 10px 0 rgba(0,0,0,0.1);
    background-color: #fff;
    z-index: 1000;
    color: #666;
    }
    .header > .title {
    font-size: 16px;
    line-height: 44px;
    text-align: center;
    margin: 0 auto;
    }
  }
</style>
<script>
  import Scroller from 'vue-scroller'

  export default {
  components: {
    Scroller
  },
  data() {
    return {
    items: []
    }
  },
  mounted() {
  	for (var i = 1; i <= 20; i++) {
    this.items.push(i + ' - keep walking, be 2 with you.');
    }
    this.top = 1;
    this.bottom = 20;
    setTimeout(() => {
    this.$refs.my_scroller.resize();
    })
  },
  methods: {
    refresh() {
    console.log('refresh');
    setTimeout(() => {
      var start = this.top - 1
      for (var i = start; i > start - 10; i--) {
      // this.items.splice(0, 0, i + ' - keep walking, be 2 with you.');
      }
      this.top = this.top - 10;
      if (this.$refs.my_scroller)
      this.$refs.my_scroller.finishPullToRefresh();
    }, 1500)
    },
    infinite() {
    console.log('infinite');
    let position = this.$refs.my_scroller.getPosition();
    console.log(JSON.stringify(position));

    setTimeout(() => {

      setTimeout(() => {
      if (this.$refs.my_scroller) {
        this.$refs.my_scroller.finishInfinite(true)
        this.$refs.my_scroller.resize();
      }
      })
    }, 1500)
    }
  }
  }
</script>
